Gwen finds the darker side of Torchwood when a teenager disappears, investigating why hundreds of people have vanished without a trace. Jack is obstructing attempts to find them, and the answer appears to lie in the rift.

When an old cinema re-opens, past horrors emerge to stalk the streets of Cardiff. As bodies are found, in a state between life and death, Torchwood must act fast. Who are the Night Travellers? And how can Torchwood capture these mysterious killers?